Understanding the Pain Gate Theory: How Your Body Manages Pain

Pain is something we all experience, but did you know that your body has a built-in system for controlling how much pain you feel? This process is explained by the Pain Gate Theory, a fascinating concept that sheds light on how pain signals travel through your body—and how you can influence them.

One exciting application of this theory is the KineDek AI-CRT (AI-enabled Compensating Resistance Technology), a revolutionary technology that doesn’t just interact with the pain gate mechanism—it goes far beyond, providing a systemic approach to pain relief by actively engaging muscles, the body’s primary anti-inflammatory organ. Let’s explore how the Pain Gate Theory works and how innovations like KineDek are transforming pain management and recovery.


Picture: RS Medical

A Brief History of the Pain Gate Theory

The Pain Gate Theory was first proposed in 1965 by researchers Ronald Melzack and Patrick Wall. Their ground-breaking paper, Pain Mechanisms: A New Theory,” introduced the idea that pain signals traveling to the brain could be "gated" in the spinal cord. This challenged the earlier belief that pain was simply a direct response to injury, offering a more dynamic view of how pain is processed.

Since then, the theory has become a cornerstone of modern pain management, influencing treatments like physical therapy, TENS (Transcutaneous Electrical Nerve Stimulation), and, more recently, KineDek AI-CRT.


What Is the Pain Gate Theory?

Think of your spinal cord as a highway where pain signals travel to reach your brain. If you stub your toe or strain a muscle, nerves send pain messages to your spinal cord, and from there, these signals head to your brain, where you "feel" the pain.


Pain Gate Theory - Picture: HowStuffWorks

The Pain Gate Theory introduces the idea of a gatekeeper in your spinal cord. This gate regulates how many pain signals reach your brain:

  • Gate open: More pain signals get through, so the pain feels worse.
  • Gate closed: Fewer signals get through, reducing the pain sensation.

This modulation occurs via:

  • Large nerve fibers (A-beta fibers): Activated by non-painful stimuli (e.g., touch, pressure, vibration) and capable of "closing the gate" to block pain signals.
  • Small nerve fibers (A-delta and C fibers): Carry pain signals that "open the gate."

This "gate" doesn’t physically exist but serves as a metaphor for how pain signals are controlled within your nervous system. Interestingly, one pain can overshadow another due to this gating mechanism. For example, severe shoulder pain might dominate the brain's focus, masking milder pains in other areas like the hip or knee. Once the dominant pain subsides, these previously unnoticed pains can emerge, revealing the layered nature of pain perception.

The efficiency and rhythm of muscle contractions can influence the pain gate. When muscles work in harmony, like a well-tuned engine firing on all cylinders, they generate less strain and fewer pain signals, helping to "close the gate." Compensating resistance technology, such as AI-CRT, supports this harmony, reducing the triggers that amplify pain and enhancing the body's natural ability to modulate discomfort.


The Pain Gate and Chronic Pain Conditions

The Pain Gate Theory has particular relevance in understanding conditions like fibromyalgia, where the nervous system becomes hypersensitive to pain signals. In such cases, the "gate" may remain partially open, amplifying pain even when there’s no clear cause or injury. This constant overstimulation of pain pathways can lead to widespread discomfort, fatigue, and reduced quality of life.

Therapies aimed at closing the pain gate—such as targeted muscle activation through KineDek AI-CRT—can help "reset" these pathways by reducing inflammation and providing consistent, non-painful signals to the brain. For many individuals with fibromyalgia, this results in significant pain relief and improved function.


How Is the Theory Applied Today?

The Pain Gate Theory has been the basis for numerous pain management strategies:

  1. Physical Touch and Movement:
    Techniques like massage, chiropractic care, acupuncture, meridian therapy and gentle mindful exercise such as tai chi stimulate  non-pain signals, effectively helping to close the gate and reduce the sensation of pain.

  2. Electrical Stimulation:
    Devices like TENS units send small electrical pulses to the nerves, effectively “short-circuiting” pain signals by closing the gate. However, their effect is primarily localized and temporary, offering pain relief without a broader systemic impact. It provides symptomatic relief but doesn’t address underlying causes of pain.

  3. Mind-Body Interventions:
    Practices like yoga, mindfulness, meditation, and deep breathing reduce stress and anxiety, helping to keep the gate closed.

  4. Advanced Technologies:
    While approaches like TENS focus solely on the pain gate mechanism, KineDek AI-CRT adopts a more comprehensive strategy. It engages the body’s systems both locally and systemically, providing not only symptomatic relief but also addressing underlying causes of pain, such as inflammation and injury.


How KineDek AI-CRT Goes Beyond the Pain Gate

The KineDek AI-CRT doesn’t just interact with the Pain Gate Theory—it redefines how pain relief and healing can be achieved by addressing the root causes of inflammation and pain on a systemic level.

  • Muscle Activation as an Anti-Inflammatory Tool:
    KineDek actively engages muscles, which are the body’s primary anti-inflammatory organ. This activation helps reduce systemic inflammation, which is often the underlying cause of chronic pain. Unlike electric stimulation for example, which primarily influence localized pain signals, KineDek provides a full-body, systemic anti-inflammatory effect. Electric stimulation is also contra-indicated for Cancer, Epilepsy, Deep vein thrombosis (DVT), Bleeding disorder and Heart disease. It also do not stimulate anti-inflammatory myokine release or lactate activation, critical to systemic health. 

  • Closing the Pain Gate:
    During KineDek sessions, targeted muscle activation sends non-pain signals to the spinal cord, competing with pain signals and closing the gate.

  • Endorphin Boost:
    The controlled intensity of KineDek workouts stimulates the release of endorphins, your body’s natural pain relievers, further reinforcing the pain-relief mechanism.

  • Recovery and Resilience:
    Unlike conventional therapies, KineDek enhances the body’s overall capacity for healing by strengthening muscles and improving circulation. This leads to not just pain relief but also a reduction in the conditions that contribute to recurring pain.

For example, individuals with chronic pain associated with conditions like general injuriesLupus, rheumatoid arthritis, osteoarthritis, cancer or fibromyalgia have reported significant pain relief and improved mobility after KineDek sessions. In most cases pain relief lasted for up to 5 days. These benefits are not limited to localized relief—they reflect a systemic improvement in health and function.


Final Thoughts

The Pain Gate Theory has revolutionized our understanding of pain, showing that it is not just physical but influenced by your body’s overall systems. KineDek AI-CRT takes this understanding further by not only managing pain but also addressing the root causes of inflammation and improving overall health.

Whether you’re dealing with chronic pain, recovering from an injury, or simply looking for a way to stay active without discomfort, KineDek offers a comprehensive approach that works in harmony with your body’s natural systems.


Case Background

Video of first first KineDek session of Theresa Stuart. 

Theresa has been battling rheumatoid arthritis for 22 years, experiencing chronic pain and stiffness throughout her body. The severity of her condition has rendered her unable to perform basic physical activities, such as household chores, without assistance. Compounded by diminished lung and heart capacity, Theresa had to cease inflammation and pain medications two weeks prior due to the severity of her heart and lung condition. At the time of the intervention, she was enduring high levels of pain and had extremely limited mobility. 

After her first session (refer to link) she experienced significant pain reduction throughout her body which she reported continued days after. This is the first time she reported relative absence of pain and increased level of mobility for 22 years. After her first session she indicated significantly greater pain relief than her prescribed medication, while medication did not decrease stiffness and mobility. All her RA symptoms were relieved, including her diminished lung function, on the 3rd session 1 week later, 5 February 2024.

On 6 February 2024 she embarked on a flight from Cape Town to Melbourne via Dubai, the longest flight route in the world. This is her response to asking her how she was doing on 15 February 2024:

The flight was wonderful ðŸ™Œ.   Can you believe it? My feet never got swollen.  I walked quite a bit on the plane. I think that helped with the circulation.  I am feeling great.   We had a bit of jetlag, but we're doing much better. Alex and I went for a walk yesterday.  Today, Alex's sister and I took a walk along the beach.  It was great!

It should be noted that short necessary walks from bedroom to areas in the house was previously difficult, and that she was often completely bedridden because of pain.

At the time of updating this document on 25 April 2024, months after her final session, the symptoms have not resurfaced, and she is still normally active and doing her now regular walks.


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